12. Anna is a talented musician her brother plays the drums in a band.
Answer: Anna is a talented musician, her brother plays the drums in a band.
13. The students worked hard on their science project they were proud of the results.
Answer: The students worked hard on their science project, they were proud of the results.
14. I visited the museum to see the new exhibit that everyone has been talking about.
Answer: I visited the museum to see the new exhibit that everyone has been talking about.
15. After the storm passed they went outside to assess the damage.
Answer: After the storm passed, they went outside to assess the damage.